Fyodor Rostislavich
Duke Fyodor Rostislavich nicknamed Fyodor the Black or Fyodor Chermny, Феодор Ростиславич Чёрный ) is a saint of the Russian Orthodox Church and was a ruler of Smolensk and Yaroslavl. The alternative interpretation of his nickname is Theodore the Beautiful.
Biography
Early years
His father, Prince Rostislav Mstislavovich of Smolensk, died in 1240. Since his birth, Fyodor was a Duke of Mozhaysk. In 1260 Fyodor married Maria Vasilievna, the daughter of Prince Vasily of Yaroslavl. Contemporary research indicates, that her actual name was Anastasia, and only after the 16–17th centuries changed in fasti by mistake. Through marriage Fyodor became prince of Yaroslavl, however, the actual power was concentrated in hands of Princess Xenia of Yaroslavl, Maria's mother. With this wife Theodore had two daughters and a son, Michael.Golden Horde
Bored with his status, around 1266 Fyodor left his family and on his own initiative went to Sarai, the capital of the Golden Horde. He became a loyal servant and military commander of Khan Mengu-Timur. Fyodor the Black took part in Mengu-Timur invasion in Ossetia, in 1277–1278 he headed the punitive campaign in the Volga Bulgaria. According to the historical documents, his troops sacked 40 cities and 600 villages with the peculiar ferocity.Upon the successful campaign Mengu-Timur promoted Fyodor to his butler and offered to marry one of his daughters. The fasti state, that Fyodor rejected this offer, because he still had a wife in Yaroslavl. Three years later he received a message about Maria's death and came back to Yaroslavl, trying to regain the power. However, Xenia and the boyars refused to let enter the city, so he came back to the Horde.
Later Fyodor married the daughter of Mengu-Timur, who was baptized and received the Christian name Anna. With the marriage Theodore received a huge dowry and rose to prominence in the Horde. He and Anna had two sons, David and Constantine. In 1290 Michael Theodorovich died in Yaroslavl, so Theodore the Black with his Jarlig from the Mongols returned in the city to rule.
Prince of Yaroslavl
Upon death of his brothers in 1278–1279, Fyodor inherited the Principality of Smolensk. Presumably, in 1279–1281 he resided in Smolensk, then again moved to the Horde. Later he took part in the war between the sons of Alexander Nevsky, that ended with the destruction of many Russian towns by both the Mongols and the Russians.In 1293 Fyodor took part in Dyuden's punitive campaign in northeastern Rus', in which 14 towns were sacked by the Mongols and their Rus' allies for disloyalty to the new khan.